Lava domes -- or volcanic domes -- vary in size and shape. They can reach up to 1,640 feet high, but typically stay within ranges of 30 to 320 feet, according to the USGS.

The stone structures are all associated with old lava domes, ... In addition, they may find more examples of what these strange people were like in this remote region of Saudi Arabia.

Hundreds of huge, mysterious stone structures have been discovered on ancient lava domes in Saudi Arabia. Using Google Earth, Australian archaeologist David Kennedy has documented around 400 stone ...

One of the world’s largest lava domes has been discovered in an underwater volcano south of Japan, suggesting an enormous build-up of magma may exist underneath it.. The structure, which appears ...

A study suggests that Venus' volcanic "pancake domes" push the planet's crust down, forming bulges toward the surface. This could explain a decades-old mystery.

You don’t have to travel to Hawaii or Iceland to find a record-breaking volcano – one of Earth’s largest and youngest ...

The flow of lava has been such that the vent is now drowning, which forces the lava to emerge from “roofed vertical channels,” the USGS reports. The “vigorous” dome fountain was first ...

A set of bouncing baby volcanic vents is visible in a new astronaut photograph that doesn't look like it was taken over Earth. But the image, released today (June 5) by NASA's Earth Observatory ...

An image of a 65-foot-tall lava dome was shared last week by the U.S. Geological Survey. The "Throwback Thursday" image was originally taken Oct. 11, 1969, nearly a half-century ago. A spectacular ...